.ui-switch {
  position: relative;
  display: inline-block;
  width: r(44);
  height: r(22);
  line-height: r(20);
  vertical-align: middle;
  border-radius: r(20);
  border: 1px solid #ccc;
  background-color: #ccc;
  cursor: pointer;
  transition: left .3s cubic-bezier(.78, .14, .15, .86);
  user-select: none;

  &:after {
    position: absolute;
    width: r(18);
    height: r(18);
    left: r(2);
    top: r(1);
    border-radius: 100%;
    background-color: #fff;
    content: " ";
    cursor: pointer;
    transition: left .3s cubic-bezier(.78, .14, .15, .86);
  }

  &.checked {
    border: 1px solid $base-theme-info;
    background-color: $base-theme-info;

    &:after {
      left: r(22);
    }

    .ui-switch-inner {
      left: r(6);
    }
  }

  &.disabled {
    cursor: not-allowed;
    opacity: 0.5;

    &:after {
      cursor: not-allowed;
    }
  }
  
  &.size-sm {
    height: r(14);
    line-height: r(12);
    width: r(28);

    &:after {
      width: r(12);
      height: r(12);
      top: 0;
      left: 0;
    }

    &.checked {
      &:after {
        left: r(14);
      }

      .ui-switch-inner {
        left: r(3);
      }
    }

    .ui-switch-inner {
      left: r(13);
      font-size: r(10);
    }
  }

  .ui-switch-inner {
    position: absolute;
    left: r(24);
    color: #fff;
    font-size: r(12);
  }
  
}